package com.zyg.controller;

import com.alibaba.fastjson2.JSON;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.zyg.pojo.Class;
import com.zyg.pojo.Grade;
import com.zyg.service.ClassService;
import com.zyg.service.impl.GradeServiceImpl;
import com.zyg.util.LayData;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import java.io.IOException;
import java.util.List;



@Controller
@RequestMapping("/class")
public class ClassController {
    @Autowired
    private ClassService classService;
    @Autowired
    private GradeServiceImpl gradeService;

    @RequestMapping("/tolist")
    public String tolist(){
        return "class/list";
    }
    @RequestMapping("/list")
    @ResponseBody
    public  String list(Class class1, @RequestParam(value = "page", defaultValue = "1") Integer page, @RequestParam(value = "limit", defaultValue = "10") Integer limit) throws IOException {
        // 查询数据
        LayData layData = new LayData();
        QueryWrapper<Class> qw= new QueryWrapper<>();
        if(class1.getClassName()!=null&&!class1.getClassName().equals(""))
            qw.like("class_name",class1.getClassName());
        long count = classService.count(qw);
        layData.setCount((int)count);
        IPage<Class> page1 = new Page<>(page, limit);
        List<Class> list = classService.list(page1, qw);
        layData.setData(list);

        layData.setCode(0);

        layData.setMsg("查询成功");
        // 数据返回
        String data = JSON.toJSONString(layData);

        return data;
    }
    @RequestMapping("/toadd")
    public String toadd(Model model){
        List<Grade> grades =gradeService.list();
        model.addAttribute("grades",grades);
        return "class/add";
    }
    @RequestMapping("/addSave")
    @ResponseBody
    public String addSave(Class class1){

        boolean flag = classService.save(class1);
        if (flag){
            return JSON.toJSONString(new LayData(0,"添加成功"));
        }else{
            return JSON.toJSONString(new LayData(500,"添加失败"));
        }
    }
    @RequestMapping("/toupdate/{id}")
    public String toUpdate(@PathVariable("id") Integer id, Model model){
        Class class1 = classService.getById(id);
        model.addAttribute("class",class1);
        return "class/update";
    }
    @RequestMapping("/updateSave")
    @ResponseBody
    public String updateSave(Class class1){
        boolean flag = classService.updateById(class1);
        if (flag){
            return JSON.toJSONString(new LayData(0,"修改成功"));
        }else{
            return JSON.toJSONString(new LayData(500,"修改失败"));
        }
    }
    @RequestMapping("/delete/{id}")
    @ResponseBody
    public String deleteClass(@PathVariable("id") Integer id){
        boolean flag = classService.removeById(id);
        if (flag){
            return JSON.toJSONString(new LayData(0,"删除成功"));
        }else{
            return JSON.toJSONString(new LayData(500,"删除失败"));
        }
    }
}
